Most efficient way to rank up in arena? (F2P)

"Yung_Hen;97823" wrote:
So I'm sitting at around rank 200-300 in Arena and really want to rank up to get more crystals. I'm currently running a hybrid Jedi+Boba+Kylo (leader and squad formation changes based on who I'm facing, empire/Sith I use yoda, otherwise I replace him with aayla). All those characters are 6* or 7* and G9 or G10. I just really want to hear all of your guys' advice on how to rank up. I'm currently focusing on Sith and empire because of how good it is. But I'm curious if I should be focusing on mods, who I should gear up, who I should farm in cantina (currently Lando because I'm on crunch time to get a 7* EP), etc. I would also really appreciate to hear what team compositions I should focus on. Here's my list of characters to give some background https://swgoh.gg/u/yeezy/mods/